42430 is a postalcode and its consensus geometry is derived from frgov.
{"mz:is_ceased":0,"geom:latitude":45.90963,"wof:name":"42430","counts:names_total":0,"wof:placetype":"postalcode","frgov:DEP":"42","frgov:ID":"42430","frgov:_COL6":1325.018,"mz:is_approximate":1,"wof:hierarchy":[{"continent_id":102191581,"country_id":85633147,"county_id":102069833,"empire_id":136253037,"localadmin_id":404350577,"macrocounty_id":404227889,"macroregion_id":1108826389,"postalcode_id":421301993,"region_id":85683377}],"mz:is_deprecated":0,"frgov:SURF":131.265286,"geom:area":0.015258,"geom:longitude":3.84997,"wof:id":421301993,"frgov:LIB":"Saint-Just-en-Chevalet","counts:concordances_total":1,"geom:type":"MultiPolygon","wof:lastmodified":1496506746,"wof:belongsto":[85683377,102191581,85633147,404350577,404227889,1108826389,136253037,102069833],"wof:concordances":{"gp:id":"12724969"},"wof:repo":"whosonfirst-data-postalcode-fr","src:geom":"frgov","wof:country":"FR","counts:names_preferred":0,"frgov:POP2010":3009,"gp:parent_id":"12597165","geom:area_square_m":1.31275804290875E8,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"FR","counts:names_languages":0,"geom:bbox":"3.7289914297,45.8284089243,3.93996335885,45.9998548094","wof:superseded_by":[],"wof:supersedes":[],"wof:geomhash":"dd47dc168496a44d37294d9bf8b78e5c","wof:parent_id":404350577,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu"}